Concrete wet spraying machine chassis and concrete wet spraying machine

Abstract

The invention relates to a concrete wet spraying machine chassis, which comprises a bearing chassis body and a travelling system. The travelling system comprises a front axle, a transmission shaft, arear axle and a hydraulic transmission system; the front axle and the rear axle are fixed to the front and rear parts of the bottom of the bearing chassis body, and connected through the transmissionshaft; the transmission shaft comprises a front transmission shaft, an intermediate transmission shaft and a rear transmission shaft; the hydraulic transmission system comprises an engine, and furthercomprises a travelling pump and a steering brake pump which are arranged on the engine, a travelling motor and an electromagnetic directional valve, the output end of the steering brake pump is connected with the electromagnetic directional valve, the electromagnetic directional valve is connected with a steering oil cylinder, the travelling pump is connected with the travelling motor in a transmission mode, the output end of the traveling motor is connected with a gearbox, the gearbox is connected with a main reducer of the front axle and the transmission shaft, and the transmission shaft isconnected with a main reducer of the rear axle. The invention further relates a concrete wet spraying machine. According to the concrete wet spraying machine chassis and the concrete wet spraying machine, the operation efficiency is high, the labor intensity is low, the passability is good, and the turning radius is small.

Description

technical field [0001] The invention relates to the field of engineering construction machinery, in particular to a concrete wet spraying machine chassis and a concrete wet spraying machine used for initial support construction of tunnel engineering, highway engineering, side slopes and the like. Background technique [0002] Concrete wet spraying machine is a kind of use of hydraulic pressure to transport the ready-mixed concrete mixture to the spray gun through the pipeline, connect the compressed air and the accelerator at the nozzle mouth to spray the mixture to the sprayed surface at a high speed, and form after rapid solidification and hardening. Construction machinery for concrete support. Shotcrete technology is widely used in various construction fields due to its simple process and economical cost. [0003] The wet spraying machines currently in use are roughly divided into two types: one is a small hand-held wet spraying machine, which has defects such as poor qu...

AI Technical Summary

Problems solved by technology

[0003] The currently used wet spraying machines are roughly divided into two types: one is a small hand-held wet spraying machine, which has defects such as poor sprayed concrete quality, loose structure, large rebound, high labor intensity, and low operating efficiency. There are many people on the surface, and serious safety accidents are prone to occur, so the development of small hand-held wet spraying machines has been gradually suppressed; the other is the wet spraying machine for automobile chassis, and the chassis of the wet spraying machine for automobile chassis Axle steering and single-axle drive have poor passability when driving on potholes and uneven roads, poor climbing ability, large turning radius, and no air compressor. For field working conditions or construction sites without air compressors, wet spraying machine will not work, limiting its scope of application

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